Reduction Feature Request: do not reduce expressions which return Lambda Values

[GoogleCodeExporter]

Related to issue 23, Let(_,x,Lambda(_)) when x |> isReduced should be 
considered reduced, since we don't want to see generated lambda names sprinted

So instead of

> unquote <@ 23 + 3 + 4 + 1, let x = 2 + 3 in (fun j -> j + x) @>;;
> 
(23 + 3 + 4 + 1, (let x = 2 + 3 in fun j -> j + x))
(26 + 4 + 1, (let x = 5 in fun j -> j + x))
(30 + 1, <fun:ToFSharpFunc@3051-1>)
(31, <fun:ToFSharpFunc@3051-1>)

should be

> unquote <@ 23 + 3 + 4 + 1, let x = 2 + 3 in (fun j -> j + x) @>;;
> 
(23 + 3 + 4 + 1, (let x = 2 + 3 in fun j -> j + x))
(26 + 4 + 1, (let x = 5 in fun j -> j + x))
(30 + 1, (let x = 5 in fun j -> j + x))
(31, (let x = 5 in fun j -> j + x))

Original issue reported on code.google.com by stephen....@gmail.com on 22 Mar 2011 at 2:13